Patents by Inventor Nicholas A. Penebre

Nicholas A. Penebre has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Microchannel ion gun
    Patent number: 4240007
    Abstract: The present invention describes an ion gun which is capable of producing relatively high density ion currents. The ion gun employs at least one capillary duct the surface of which is semiconducting and has secondary electron emission coefficient greater than one to generate ions from a source of an ionizable material and to accelerate the ions so generated.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: December 16, 1980
    Assignee: International Business Machines Corporation
    Inventors: Russell W. Dreyfus, Nicholas A. Penebre, Richard A. McCorkle